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Finding the Fourth Proportional to 23,978.63, 33,091.64 and 13,368.26

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Solution

The fourth proportional to 23,978.63, 33,091.64 and 13,368.26 is: 18,448.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,978.63 : 33,091.64 = 13,368.26 : x
  2. Step 2: Convert to fraction form
    23,978.63/33,091.64 = 13,368.26/x
  3. Step 3: Cross multiply
    23,978.63x = 33,091.64 × 13,368.26
  4. Step 4: Simplify right side
    23,978.63x = 442,377,415.05
  5. Step 5: Solve for x
    x = 442,377,415.05/23,978.63
  6. Step 6: Final answer
    x = 18,448.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.